International sanitary regulations : adopted by the fourth World Health Assembly in 1951, and amended by the Eighth, Ninth, Thirteenth, Sixteenth and Eighteenth World Health Assembly in 1955, 1956, 1960, 1963 and 1965.
- 3rd. annotated ed.
- Geneva : London : Geneva : London : W.H.O. ; H.M.S.O., W.H.O. ; H.M.S.O., 1966.